First checkin for OpenMesh 2.0

git-svn-id: http://www.openmesh.org/svnrepo/OpenMesh/trunk@2 fdac6126-5c0c-442c-9429-916003d36597

Core/IO/reader/OBJReader.hh

@@ -0,0 +1,159 @@
+/*===========================================================================*\
+ *                                                                           *
+ *                               OpenMesh                                    *
+ *        Copyright (C) 2003 by Computer Graphics Group, RWTH Aachen         *
+ *                           www.openmesh.org                                *
+ *                                                                           *
+ *---------------------------------------------------------------------------* 
+ *                                                                           *
+ *                                License                                    *
+ *                                                                           *
+ *  This library is free software; you can redistribute it and/or modify it  *
+ *  under the terms of the GNU Lesser General Public License as published    *
+ *  by the Free Software Foundation, version 2.1.                            *
+ *                                                                           *
+ *  This library is distributed in the hope that it will be useful, but      *
+ *  WITHOUT ANY WARRANTY; without even the implied warranty of               *
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU        *
+ *  Lesser General Public License for more details.                          *
+ *                                                                           *
+ *  You should have received a copy of the GNU Lesser General Public         *
+ *  License along with this library; if not, write to the Free Software      *
+ *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.                *
+ *                                                                           *
+\*===========================================================================*/
+
+
+//=============================================================================
+//
+//  Implements an reader module for OBJ files
+//
+//=============================================================================
+
+
+#ifndef __OBJREADER_HH__
+#define __OBJREADER_HH__
+
+
+//=== INCLUDES ================================================================
+
+
+#include <iostream>
+#include <string>
+#include <vector>
+#include <map>
+#include <fstream>
+
+#include <OpenMesh/Core/System/config.h>
+#include <OpenMesh/Core/Utils/SingletonT.hh>
+#include <OpenMesh/Core/IO/importer/BaseImporter.hh>
+#include <OpenMesh/Core/IO/reader/BaseReader.hh>
+
+
+//== NAMESPACES ===============================================================
+
+
+namespace OpenMesh {
+namespace IO {
+
+
+//== IMPLEMENTATION ===========================================================
+
+
+/** 
+    Implementation of the OBJ format reader.
+*/
+class _OBJReader_ : public BaseReader
+{
+public:
+
+  _OBJReader_();
+
+  virtual ~_OBJReader_() { }
+
+  std::string get_description() const { return "Alias/Wavefront"; }
+  std::string get_extensions()  const { return "obj"; }
+  
+  bool read(const std::string& _filename, 
+	    BaseImporter& _bi, 
+	    Options& _opt);
+
+private:
+
+#ifndef DOXY_IGNORE_THIS
+  class Material
+  {
+  public:
+
+    Material() { cleanup(); }
+
+    void cleanup()
+    {
+      Kd_is_set_ = false;
+      Ka_is_set_ = false;
+      Ks_is_set_ = false;
+      Tr_is_set_ = false;
+    }
+
+    bool is_valid(void) const 
+    { return Kd_is_set_ || Ka_is_set_ || Ks_is_set_ || Tr_is_set_; }
+
+    bool has_Kd(void) { return Kd_is_set_; }
+    bool has_Ka(void) { return Ka_is_set_; }
+    bool has_Ks(void) { return Ks_is_set_; }
+    bool has_Tr(void) { return Tr_is_set_; }
+      
+    void set_Kd( float r, float g, float b ) 
+    { Kd_=Vec3f(r,g,b); Kd_is_set_=true; }
+
+    void set_Ka( float r, float g, float b ) 
+    { Ka_=Vec3f(r,g,b); Ka_is_set_=true; }
+
+    void set_Ks( float r, float g, float b ) 
+    { Ks_=Vec3f(r,g,b); Ks_is_set_=true; }
+    
+    void set_Tr( float t )
+    { Tr_=t;            Tr_is_set_=true; }
+  
+    const Vec3f& Kd( void ) const { return Kd_; }
+    const Vec3f& Ka( void ) const { return Ka_; }
+    const Vec3f& Ks( void ) const { return Ks_; }
+    float  Tr( void ) const { return Tr_; }
+  
+  private:
+
+    Vec3f Kd_;         bool Kd_is_set_; // diffuse
+    Vec3f Ka_;         bool Ka_is_set_; // ambient
+    Vec3f Ks_;         bool Ks_is_set_; // specular
+    float Tr_;         bool Tr_is_set_; // transperency
+  };
+#endif
+
+  typedef std::map<std::string, Material> MaterialList;
+
+  MaterialList materials_;
+
+  bool read_material( std::fstream& _in );
+
+private:
+
+  bool read(std::fstream& _in, BaseImporter& _bi, Options& _opt);
+
+  std::string path_;
+
+};
+
+
+//== TYPE DEFINITION ==========================================================
+
+
+extern _OBJReader_  __OBJReaderInstance;
+_OBJReader_& OBJReader();
+
+
+//=============================================================================
+} // namespace IO
+} // namespace OpenMesh
+//=============================================================================
+#endif
+//=============================================================================